Rivett is currently fourth equal in the title race in his 4Front Motor Group with WDE-run car but has 78 points to make up on leader Bushell.
However that gap comes down considerably to just 58 when the championship’s two-dropped-scores rule is applied (when Whorton-Eales actually takes over at the top).
Rivett commented: “Fifty-eight points sounds a lot but it just isn’t in this game and you have to remember I lost 32 points recently with some bad luck when I was out in front at Croft.
“If I’m behind either of Mike or Ant this weekend then they will definitely know I am there – I’ll certainly take the opportunity to put big pressure on them.
“Obviously Bushell has won the title before so that might help him – if either is going to crack I’d be more inclined to say it would be Ant.
“There’s no hiding from the fact though that podium results in every race now would be ideal – and preferably podiums meaning a win with a few drivers getting in between me and Mike and Ant.”
Rivett says with six races to go and considering that 32 points are awarded for a win there is still time to close on the leading pair in time for the season’s title-deciding rounds at WDE’s home circuit of Brands Hatch in early October. Indeed it means that there are in fact 192 points still to be won…
Rivett added: “Bushell turned it around by more than that in the last six races to win the title in 2014 so he will be wary.
“Likewise Ant who went into last year’s final rounds as one of three drivers who could realistically win it – and it was the man in third, the underdog Ash Sutton, who came out on top in the end.
“Both know they have to watch out for me and also Max Coates who is doing a very good job in third overall – he seems to have a knack of turning it on and being in the right place at the right time in a race and you don’t do that as much he has by luck.”